What material does fish pond filter need? 1.Fish pond filter material: Brush, volcanic stone, oyster shell, coral sand, activated carbon, ceramic ring, biochemical cotton, etc.2.When selecting the filter material, it should be selected according to its own situation (fish tank size, fish species, filtration method, filtering space, economic conditions, etc.A combination of one or more filter materials can be used in the filtration system. the fish tank is very small and there are very few fish,The filter system can be simple, small, and the simplest filter cotton can be selected,Filtering can even be used. do not use alkaline filter materials for fish (such as colorful, fairy, light fish, etc.) that like acid water. fish that raise sea fish or fish that like alkaline hard water (usually all fish of African origin ),Do not use a filter that will release acid or soften water (such as activated carbon,Has the function of softening water ).On the whole,Filter cotton is generally a must,Because he'
What are the main performance indicators of air filters? Filtration accuracy refers to the maximum diameter of the impurity particles allowed to pass. The key to affecting the filtering accuracy is the filter element. different filter elements can be selected according to the needs of the following components to achieve the corresponding filtering accuracy.Flow characteristic refers to the relationship between the air flow through the filter and the pressure drop at both ends of the filter at a certain inlet pressure. in actual use, it is best to lose less than 0 pressure. selected within the range of 03MPa. In the air filter, the main factors that affect the flow characteristic are the body and the filter element.Water separation efficiency refers to the ratio of separated water to the water content in the air inlet. Generally, the water separation efficiency of the air filter is not less than 80%. the main factor affecting the water separation efficiency is the guide plate.